Vomiting accompanied by fever, no diarrhea is considered to be the possibility of gastrointestinal flu, so if the symptoms need to go to the hospital in a timely manner, it is not recommended to deal with at home to prevent accidents. In most cases, there are triggers for overeating, thick tongue coating and bad taste in the mouth, so you can use pediatric black bean curd and clear heat granules as well as Shenqu elimination of food oral solution under the guidance of a doctor. If the headache is accompanied by vomiting in the form of jet, it is best to improve the lumbar puncture examination, except intracranial infection.